A block is placed on rough floor and a horizontal force F is applied on it. The force of friction f by the floor on the block is measured for diffeent values of F and a graph is plotted between them(a) The graph is straight line of slope 45^(@)(b) The graph is straight line parallel to the F - axis.(c ) The graph is straight line of slope 45^(@) for small F and a straight line parallel to the F - axis for large F.There is a small kink on the graph.

A block is placed on rough floor and a horizontal force F is applied o

1.	A block is placed on rough floor and a horizontal force F is applied on it. The force of friction f by the floor on the block is measured for diffeent values of F and a graph is plotted between them(a) The graph is straight line of slope 45^(@)(b) The graph is straight line parallel to the F - axis.(c ) The graph is straight line of slope 45^(@) for small F and a straight line parallel to the F - axis for large F.There is a small kink on the graph.
Answer» a and C are TRUE a, B and d are true c and d are true all are true ANSWER :C